access re-direction of wp-admin

Hi, I have the following issue. I configured my theme on the temporarн hosting of my friend (yr.hostenko.com). When I got ready with all my staff I transfered the site to my hosting (yoriksolomonovich.com). Site is working ok after the transfer but I can't access the wp-admin. trying to access yoriksolomonovich.com/wp-admin I'm re-directing to the previous hosting - yr.hostenko.com/wp-admin. Hosting company support infiormed me that this is not their issue and that this re-direction is stuck somewhere in the configuration of the site. Thank in advacnce for your help.